List of top Science Questions on Reproduction in Plants

An example of vegetative propagation through leaves is

Differentiate between self-pollination and cross-pollination.

What is vegetative propagation? Describe it with a suitable example and diagrams.

Write the name and functions of any two plant hormones.

Write a short note on any two permanent methods of family planning.

Example of unisexual flower is:

Pollen sac contains:

Study the diagram given below and name the parts marked as A, B and C. What happens when B reaches C in the ovary? Mention its significance.

Pollination is an important process in sexual reproduction of plants. It is an essential process that facilitates fertilisation in plants. Pollinating agents can be wind, water, insects and birds. Several changes take place in the flower after the fertilization has taken place.

Part(s) of a flower which attracts insects for pollination is (are)

What are spores? On which structures are they formed? How do they overcome unfavourable conditions? Name the organism which multiplies with the help of these structures.

Give two reasons why some plants are grown by the method of vegetative propagation. List two methods used to grow plants vegetatively.

Write the post fertilisation changes that occur in a flower.

Two pea plants, one round green (\(RRyy\)) seeds and another with wrinkled yellow (\(rrYY\)) seeds produce \(F_1\) progeny that has round yellow (\(RrYy\)) seeds. If the \(F_1\) progeny plants are selfed, then the minimum number of plants of the \(F_2\) progeny will have the following observable characters:

Draw a labelled diagram of longitudinal section (L.S.) of gynoecium to show the fertilization in flowers and describe it.